<!DOCTYPE html>
<html>
<head>
	<title>webworker例子</title>
</head>
<body>
	<fieldset name="后台数值计算">
		<legend>后台数值计算</legend>
		<div class="calc">正在计算......</div>
	</fieldset>
	<script type="text/javascript" src="./main.js"></script>
</body>
</html>